Science Magazine, often simply referred to as Science, is a multidisciplinary, peer-reviewed academic journal with great prestige. Established in 1880 in New York, it is now based in Washington, D.C. with a second office in Cambridge, England. Each issue contains a wide variety of content, including original research, reviews, science news, opinions on science policy, and other types of articles. It is published weekly and has a 2013 impact factor of 31.477. Science is the journal of the American Association for the Advancement of Science and is fully available online to subscribers.